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eduard
3 years ago
7

Desertification is cause by___

Biology
1 answer:
kvasek [131]3 years ago
5 0

Answer:

<h2><em><u>human</u></em><em><u> </u></em><em><u>activities</u></em><em><u> </u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em></h2>
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How does the recesive sickle-cell allele stay in the gene pool
Zina [86]

Answer:

Because natural selection selects for it. Thus it persists.

Explanation:

You have to understand heterozygote advantage. Basically, it's where heterozygotes have an advantage over homozygotes. In the case of sickle cell disease, heterozygotes have an advantage, and natural selection favors whatever is advantageous. Thus, because heterozygotes each have one recessive sickle-cell allele, as natural selection favors the heterozygotes, the recessive sickle-cell allele persists and remains in the gene pool.

7 0
3 years ago
What does random mean and how does it apply to genetics?
Darya [45]
The simplest answer would be to look at a punnet square. it gives you the random chance that a trait gets passed on to offspring. it's made off probability of dominant and recessive genes. But it's random in the end.
8 0
3 years ago
Read 2 more answers
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erastovalidia [21]
Within a protein, multiple amino acids are linked together by peptide bonds, thereby forming a long chain. So, if these amino acids are in anyway related to each other, there can be some similar resemblance between the beetles.
3 0
3 years ago
Through what process do cells become specialized so they can perform specific functions within organisms? A. mitosis B. fertiliz
finlep [7]

Answer:

The correct answer is C. differentiation.

Explanation:

Cell differentiation is a process via which generic embryonic cells are transformed into specialized cells through a process of gene expression. Certain signals from inside and outside our body initiates gene expression.

Cell differentiation occurs at various stages of development, which causes the size and the shape of the cell to change dramatically.

Importance of cell differentiation:

  • Plays vital role in embryonic development
  • Helps in developing organisms throughout their life

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3 years ago
Do fungi have chloroplasts?
lina2011 [118]
No all fungi do not have chloropasts..............


6 0
3 years ago
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